From owner-freebsd-questions@FreeBSD.ORG Sun Jun 4 17:54:00 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2B0C716AB6F for ; Sun, 4 Jun 2006 17:54:00 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id E18F743D7B for ; Sun, 4 Jun 2006 17:53:52 +0000 (GMT) (envelope-from freebsd-questions@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1FmwnG-0005RX-Hg for freebsd-questions@freebsd.org; Sun, 04 Jun 2006 19:53:44 +0200 Received: from r5bp69.chello.upc.cz ([86.49.75.69]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 04 Jun 2006 19:53:42 +0200 Received: from element by r5bp69.chello.upc.cz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 04 Jun 2006 19:53:42 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Pavel Duda Date: Sun, 04 Jun 2006 19:53:15 +0200 Lines: 60 Message-ID: References: <44831BAD.3080904@webanoide.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: r5bp69.chello.upc.cz User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041103 Thunderbird/0.9 Mnenhy/0.6.0.104 X-Accept-Language: en-us, en In-Reply-To: <44831BAD.3080904@webanoide.org> Sender: news Subject: Re: FreeBSD and newer HDD problems ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 04 Jun 2006 17:54:06 -0000 Mikhail Goriachev wrote: > Pavel Duda wrote: > >>Hello, >>I've recently bought new big HDD (WDC RE, 320GB) and it looks like >>FreeBSD has some troubles with it when trying to transfer files over >>network. >> >>If I try to perform some "synthetic" test like 'dd if=/dev/zero >>of=/wdc320/testfile' then I get some decent speeds about 40MB/s. When I >>try to copy some big files from my older disk (IBM 40GB) I still have >>write about 25-27MB/s. >> >>Problem comes when I try to copy something to disk over network (tried >>samba, ftp) disk write speed is very low - about 5-6MB/s at max. >>When testing this issue I've start 'systat -vmstat 1' and noticed that >>my new disk is very busy (60-100%) and speed (MB/s) jumps up and down. >>If I write files with 'dd' or transfer them from disk 2 disk then write >>speed and disk load is almost constant (about 60%). When transfering >>files over network to old HDD then disk load is low (40-50%) and speed >>is constant (8-9MB/s). >> >>To be sure that disk it is not some kind of disk problem I've installed >>Debian 3.1r2 with same version of samba and I get 9-11MB/s transfer >>speeds (in both directions) !! >> >>Also it doesn't matter if I use transfer data over gigabit card or >>100mbit card. Results are similar. FreeBSD is in avarage very very slow >>(3MB) while Debian works fine (10MB). Because my server is primarily >>used for transfer files (Samba + PDC) it is crucial for me to have >>highest transfer speeds possible and I'd like to stick with FreeBSD :-/. >> >>Does someone has any idea what could be wrong or how could I determine >>what causes this problem ? >> > > > Hi, > > This effect is normal since you're transferring files over relatively > slow network. The speed through 100Mb/s Ethernet will be around 5 or > 6MB/s and probably you can't go any faster due to your hardware > limitations (switch, cables, processor, controllers and especially their > drivers). > > Currently there are a few active threads related to similar issues > (controllers and their drivers). You might be interested in following them: > > http://lists.freebsd.org/pipermail/freebsd-questions/2006-June/123577.html > http://lists.freebsd.org/pipermail/freebsd-questions/2006-June/123588.html > http://lists.freebsd.org/pipermail/freebsd-questions/2006-June/123673.html > > > Cheers, > Mikhail. > Hmmm so how you explain that with Debian system on SAME machine I'm ABLE to get transfer speeds about 10MB/s ?? Or do you mean I can't go faster with FreeBSD and only solution is switch to Linux ??